"To kick off the launch of the downloadable content release for Metal Gear Rising: Revengeance, we're making this particular pack free in North America until April 3rd, 2013. Grab it now on PlayStation Network." -- Source: PlayStation Blog US

Linked this when it was originally posted but is time to repeat the message again:

"[...] Finally, a bit about the soundtrack CD themselves. There are two different CD releases scheduled. The first is the Metal Gear Rising OST, part of the limited edition package, which features the instrumental tracks from the game. The second CD is called "Metal Gear Rising: Revengeance Vocal Tracks," which like its name implies, features all the vocal tracks from the game. The contents of both CDs have no overlap, so only by getting both soundtracks will you be able to complete a full collection of music from the game. I'm sorry if this is sounding like a sales pitch, but I wanted to make sure fans aren't misled by the multiple packages and make the right purchases. There are plenty of times that a lack of information has led me to purchase the wrong soundtrack myself."

I just ran through the first three missions again with the suit and muramasa blade with maxed attack. Stuff dies so fast, lololol. Also, GOD i need a download of Locked and Loaded and Armstrong's theme.

"The news comes by way of the latest Hideradio (via NeoGAF), in which Kojima Productions boss Hideo Kojima confirms the port's upcoming release. A tweet from Platinumís JP Kellams provides further confirmation.

Naturally, I haven't played them yet. I decided to mess around in the VR missions instead for whatever reason. Wish I did that earlier, some are kinda fun. Short, but when you paid nothing for them, who cares.